How many grams of KO2 are needed to form 8.0 g of O2?

Why is it important for an IV solution to have salts in it?

How many regions are in the electromagnetic spectrum?

Use Gay-Lussac Law to solve. When the pressure of a balloon starts at 7.5 atm and the temperature surrounding the balloon goes from 65 C to 32 C, what would be the end pressure.

A 8.50 g sample of KCl is dissolved in 66.0 mL of water. The resulting solution is then added to 72.0 mL of a 0.280 M CaCl2 (aq) solution. Assuming that the volumes are additive, calculate the concentrations of each ion present in the final solution.

A 100.0 mL sample of a 0.200 M aqueous solution of K2CrO4 was added to 100.0 mL of a 0.100 M aqueous solution of BaCl2. The mixture was stirred and the precipitate was collected, dried carefully, and weighed.

Which of the following substances is an Arrhenius acid? BF3 HCNNH3Mg (OH) 2

Zac releases the air from a balloon. Which statement best describes what will happen to the air that was inside the balloon?

In stars, hydrogen nuclei combine with each other to form helium and other heavier elements. what is this process called?

What is an indicator?

What is the mass of 1 mole of water